【摘要】 本文用伽师地区11个数字地震台记录的地震波形资料,用Atkinson方法反演该地区地震波的非弹性衰减;用Moya方法反演11个台的场地响应。扣除地震记录中的传播路径、场地响应与仪器响应后,用遗传算法测定参与计算的76次地震震源参数。分析结果表明:伽师地区Q0值小于天山中东段地区Q0值,这表明该地区构造运动要比天山中东段剧烈,地震活动反映的情况也是如此;11个台的台基都有不同程度的放大效应。在单对数坐标下,76次地震震级与地震矩、震源尺度成正相关关系,与拐角频率成反相关关系。地震震级与应力降之间没有明显依赖关系,表明该地区地震应力降值可作为一个参数为地震预测服务。更多还原

【Abstract】 Based on the seismic wave data recorded by 11 digital seismic stations in the Jiashi region,Xinjiang,the authors used the Atkinson methods to inverse the non-elasticity of the seismic waves of the region,and the Moya methods to inverse site response of 11 digital seismic stations.After deducting the transmitting path,site response and apparatus response from the seismic wave,we use genetic algorithm to obtain the source parameters of 76 earthquakes.The result shows:Q0 value of Jiashi region is lesser than the Q0 value of middle-east area of Tianshan.This means the tectonic activity of Jiashi region is more active than the middle-east area of Tianshan,and so is the seismic activity.The site effects of 11 seismic stations were obtained showing amplification.At the single logarithm coordinate,the relation is positive between seismic magnitude and seismic moment and hypocenter scale,but the relation is opposite between seismic magnitude and corner frequency.There is not distinct relation between seismic magnitude and stress drop.The stress drop can be used as a parameter in earthquake prediction.更多还原